External connection to CM850 Cummins ECM

[Khein]

I have been trying to connect to an ISC CM850 Cummins ECM but have no succes.
As I wan having some problem in the truck wiring, I removed from the truck the ECM and try to connect to it without using any OEM neither Cummins harness.
Using the engine wiring diagram I connect:
- 24V battery supply - and + to the OEM Power Connector (PIN n? 01 and 04)
- 24V + battery suply to PIN n? 39
- J1587 Datalink + from PIN n? 10 to 9-PIN Deutsch
- J1587 Datalink - from PIN n? 20 to 9-PIN Deutsch
- J1939 Datalink + from PIN n? 46 to 9-PIN Deutsch
- J1939 Datalink - from PIN n? 47 to 9-PIN Deutsch
- J1939 Datalink Shield from PIN n? 37 to 9-PIN Deutsch
- 24V battery supply - and + to 9-PIN Deutsch

Then connected the 9-PIN Deutsch to Inline 5 and try to connect using Insite. I was able to connect using the J1708 protocol but I didnt have succes using the J1939, all the times I tried it started to connect but before stablish the connection it gives me some connection error.
This is the first time I try to connect to this type of ECM out from the truck and all I can guess is that Im missing some PIN or connection that has to be pluged in order to get working the ECM taken out from all the truck harness.

I want to know if anyone know what could I be missing.
Thank you in advance for the help.

[jctech]

I have been trying to connect to an ISC CM850 Cummins ECM but have no succes.
As I wan having some problem in the truck wiring, I removed from the truck the ECM and try to connect to it without using any OEM neither Cummins harness.
Using the engine wiring diagram I connect:
- 24V battery supply - and + to the OEM Power Connector (PIN n? 01 and 04)
- 24V + battery suply to PIN n? 39
- J1587 Datalink + from PIN n? 10 to 9-PIN Deutsch
- J1587 Datalink - from PIN n? 20 to 9-PIN Deutsch
- J1939 Datalink + from PIN n? 46 to 9-PIN Deutsch
- J1939 Datalink - from PIN n? 47 to 9-PIN Deutsch
- J1939 Datalink Shield from PIN n? 37 to 9-PIN Deutsch
- 24V battery supply - and + to 9-PIN Deutsch

Then connected the 9-PIN Deutsch to Inline 5 and try to connect using Insite. I was able to connect using the J1708 protocol but I didnt have succes using the J1939, all the times I tried it started to connect but before stablish the connection it gives me some connection error.
This is the first time I try to connect to this type of ECM out from the truck and all I can guess is that Im missing some PIN or connection that has to be pluged in order to get working the ECM taken out from all the truck harness.

I want to know if anyone know what could I be missing.
Thank you in advance for the help.

You need a single 60 ohms resistor across J1939 + and J1939 - if your J1939 cable is less than about 300mm, if it is longer than that (max length from ECM to inline adapter is 1 metre) you may need a 120 ohms resistor at the ECM end and a 120 ohms resistor at the Inline adapter connector end of your wiring
2 x120 ohms = 60 ohms

[Khein]

You need a single 60 ohms resistor across J1939 + and J1939 - if your J1939 cable is less than about 300mm, if it is longer than that (max length from ECM to inline adapter is 1 metre) you may need a 120 ohms resistor at the ECM end and a 120 ohms resistor at the Inline adapter connector end of your wiring
2 x120 ohms = 60 ohms

Sorry I forget to write that. I was using the 60 ohms resistor cable that Cummins provide.
Another data is that in Inline 5 I had both lights ON, J1939 and J1708, but as I said I can only connected using J1708, although I have the J1939 light ON, I couldnt connected.
What am I missing?